There is an assertion often encountered in people's blogs, answers to
questions on forums, etc., that the proxy object provided by
mutableArrayValueForKey: is inefficient - in particular, that if you don't
also implement -countOfItems, -objectInItemsAtIndex:,
-insertObject:inItemsAtIndex:, and -removeObjectFromItemsAtIndex:,
then every change in the mutable array through the proxy replaces the whole
array. Is this true? Thx - m.

-- 
matt neuburg, phd = m...@tidbits.com, <http://www.tidbits.com/matt/>
A fool + a tool + an autorelease pool = cool!
AppleScript: the Definitive Guide - Second Edition!
http://www.tidbits.com/matt/default.html#applescriptthings



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